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// Copyright 2018 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef DAWNNATIVE_DYNAMICUPLOADER_H_
#define DAWNNATIVE_DYNAMICUPLOADER_H_
#include "dawn_native/Forward.h"
#include "dawn_native/RingBuffer.h"
// DynamicUploader is the front-end implementation used to manage multiple ring buffers for upload
// usage.
namespace dawn_native {
class DynamicUploader {
public:
DynamicUploader(DeviceBase* device);
~DynamicUploader() = default;
ResultOrError<UploadHandle> Allocate(uint32_t requiredSize, uint32_t alignment);
void Tick(Serial lastCompletedSerial);
RingBuffer* GetLargestBuffer();
MaybeError CreateAndAppendBuffer(size_t size = kBaseUploadBufferSize);
bool IsEmpty() const;
private:
// TODO(bryan.bernhart@intel.com): Figure out this value.
static constexpr size_t kBaseUploadBufferSize = 64000;
std::vector<std::unique_ptr<RingBuffer>> mRingBuffers;
DeviceBase* mDevice;
};
} // namespace dawn_native
#endif // DAWNNATIVE_DYNAMICUPLOADER_H_
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